JEE Main 202131 Aug, Evening shiftPhysicsMediumOptics190× since 2002
In a Young's double slit experiment, the slits are separated by 0.3 mm and the screen is 1.5 m away from the plane of slits. Distance between fourth bright fringes on both sides of central bright is 2.4 cm. The frequency of light used is ______________ 10¹⁴ Hz.